Truck-bolster for railway-cars



PATENTED JAN. 26, 1904. C. F. STREET.

TRUCK BOLSTER FOR RAILWAY GARS.

APPLICATION FILED JUNE 12, 1903.

N0 MODEL.

ma mams panne co. ,Hmouwo, wmv-mom", n. c.

UNITED STATES Patented January 26, 1904.

CLEMENT F. STREET, OF CLEVELAND, OHIO.

TRUCK-BOLSTER FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 750,731, dated January26, 1904.

Application filed .Tune 12, 1903.

l0 all 1071/071@ it ntfty concern:

Be it known that I, CLEMENT F. STREET, a citizen of the United States,and a resident of Oleveland, Ohio, have invented certain Improvements'in Truck-Bolsters for Railway- Oars, of which the following is aspecification.

The object of myinvention is to so construct a metallic truck-bolsterfor railway-cars that the same will be strong and rigid considering itsweight and will provide proper inclosures for the springs at the ends ofthe bolster. This object I attain in the manner hereinafter set forth,reference being had to the accompanying drawings, in which- Figure 1 isa view, partly in side elevation and partly in longitudinal section, ofa truckbolster constructed in accordance with my invention. Fig. 2 is aview of the same, partly in plan and partly in sectional plan, on theline a a, Fig. l. Fig. 3 is a transverse section on the line 5 Fig. 1.Fig. 4 is atransverse section on the line c c, Fig. l; and Fig. is atransverse section on the line Z (Z, Fig. l.

The central portion of the bolster consists of a beam of I sectionhaving top and bottom flanges l and 2 and central vertical web 3, saidbeam being deeper in the center than at the ends and having its verticalweb provided with openings on each side of the center for the purpose ofreducing its weight. At each end of the bolster, however, the form ofthe beam changes to an inverted box, comprising a top la, an inner side4, an outer side 5, and front and rear sides 6 and 7, said box beingintended for the reception of the springs upon which the bolster issupported, the inner side 4 of each box joining the central web 3 andtop and bottom flanges l and 2 of the I-beam constituting the centralportion of the bolster and the front and rear sides of the boxbeingstiffened and strengthened where they join the inner side of the box bymeans of llets 8 at the angles.

The outer side of the box 5 is shorter than the inner side 4, and thefront and rear sides 6 and 7 of the box have inner and outer con- SerialNo. 161,237. (No I nodel.)

cave recesses 9 and 10, these reductions being made for the doublepurpose of lessening the weight of the bolster and preventing theboxlike ends of the same from interfering with other members of thetruck to which the bolster is applied.

The central portion of the I-beam, constituting the body of the bolster,is thickened, so as to form a hollow column 11 for the reception of theking-bolt, whereby the truck-bolster and body-bolster of the car arepivotally connected, and the top of said I-beam has a central boss 12and surrounding annular flange 13, constituting a center bearing forsaid bodybolster. i

Seats for opposite side bearings are formed, by means of fillets 14,upon the inclined top of the I-beam and end boxes of the bolster, thesellets forming ribs with horizontal upper faces, or they may be extendedvertically so as to constitute the side bearings.

Having thus described my invention, I claim and desire to secure byLetters Patentl. A metallic truck-bolster for railway-cars havingacentral or body portion of I section, and end portions of inverted-boxform, substantially as speciied.

2. Ametallic truck-bolster for railway-cars having a central or bodyportion of I section, and end portions of inverted-box form whose outersides are shorter than the inner sides, substantially as specied.

3. Ametallic truck-bolster for railway-cars havinga central or bodyportion of I section, and end portions of inverted-box form whose outersides are shorter than the inner sides and whose front and rear sideshave recesses in their outer portions, substantially as specifiec 4.Ametallic truck-bolster for railway-cars having a central or bodyportion of I section, and end portions of inverted-box form whose frontand rear sides have recesses in their inner portions, substantially asspecified.

5. A metallic truck-bolster for railway-cars having a central or bodyportion of I section,

and end portions of inverted-box form whose having llets forming sidebearings or bear- IO outer sides are shorter than the inner sidesing-seats, substantially as specified.

and Whose front and rear sides have recesses In testimony whereof I havesigned my in both their inner and outer portions, subname to thisspecification in the presence of 5 stantially as speoied. twosubscribing Witnesses.

6. Ametallio truck-bolster for railway-oars CLEMENT F. STREET. having aCentral or body portion of I section, Vitnesses: and end portions ofvinverted-box form, the WILLARD WV. SAWYER, top member of the bolsterbeing beveled, but LUTHER A. ROBY.

